Improvement in matcher-heads



J. ROSS. Matcher-Head.

No. 219,830. Patented Sept. 23,1879.

Inventor film 02 0 Witnesses 63mm 42. d yfl/b UNITED STATES PATENT OFFICE.

JOSIAH ROSS, OF BUFFALO, NEW YORK.

IMPROIVEMENTIN MATCH ER-HEADS.

Specification forming part of Letters Patent No- 2l9,830, dated September 23, 1879; application filed August 13, 1879.

To all whom it may concern:

Be it known that I, JOSIAH Ross, of Bufialo, in the county of Erie and State of New York, have invented certain new and useful Improvements on Matcher-Heads; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheet of drawings, forms a full, clear, and exact specification, which will enable others skilled in the art to which it appertains to make and use the same.

This invention has general reference to matcher-heads for wood-workin g machines; and it consists in the peculiar combination of parts and details of construction, as hereinafter first fully set forth and described, and then pointed out in the claim.

In the drawings hereinbefore mentioned, which serve to illustrate 'my said invention more fully, Figure 1 is a perspective view of my improved matcher-head. Fig. 2 is a plan,

and Fig. 3 a transverse sectional elevation in line 00 w of Fig. 2. Fig. 4 is a plan of the relative position of the cutters, like letters of reference in said figures indicating corresponding parts.

The object of my present invention is the production of a matcher-head for wood-working machinery that shall be 'very simple in construction, capable of being readily adjusted to difi'erent sizes of lumber, and manufactured at a low figure.

To this end I construct my matcher-head of a central hub, A, of proper length, having a bore, B,of a size to fit the head-spindles of the class of machines described, the hub being secured to said spindle by means of a set-screw,

O. The upper end of this hub A is slightly contracted at A and internally screw-threaded to receive an adj usting-screw, D. From the hub A radiate two short arms, E E, having on their ends sockets F F, and from the contracted part-A also radiate two arms, G G, carrying on theirrcspective ends two further sockets, H H, saidsockets being pierced with angular apertures I for the reception of cutters J J, held within said sockets by means of set-screws K K K, respectively, as hereinafter to be referred to.

The relative position of the two sets of diametrically-opposite sockets F F and H H is such that two of them, the sockets F F, are so much lower than the sockets H H as is necessary to bring the points j of said cutters into line when the cutters in the sockets F F are in their lowest position. These cutters J J are made right and left--that is to say, two of them have the points j on the upper edge, and the others, J, have them on the lower edge. The object of thus constructing these cutters and arranging them in the sockets, as described, is to enable me to grooveor tongue boards of different thickness by raising the cutters J so that the points j of said cutters stand higher than those of the cutters J, the relative positions of said cutters when making the narrowest possible groove being shown in Fig. 4, and the highest position of the cutters J indicated in dotted lines in said figure.

The cutters J fit in the sockets F F, (a slid ing fit,) and they are held in position by the set-screws K pressing these cutters-down upon the bottom of said sockets. The slots for the cutters J, however, are made higher than the width of said cutters, so as to enable me to adjust them, as already specified, and for this purposethe sockets have two sets of screws, K K, respectively, the former being on the top and the latter on the bottom of said sockets. By means of these set-screws I can raise or depress either end of said cutters J until they are in the exact position desired for the kind of work to be performed.

When adjusting the cutters J J the former are first clamped in place and the outter head then raised or lowered by means of the adj use ing-screw D until they are exactly in. their proper position. Now the cutters J J areadjusted, and the matcher-head ready for work.

It will be readily observed that the matcherhead described is readily produced in the process of casting, and can be finished and fitted at but little expense, and that the cutters J J are comparatively inexpensive, so that I can manufacture and sell this matcher-head at a much lower figure than those now made, while as far as readiness of adjustment is concerned I do not know of a cutter-head that is equal to it.

Having thus fully described my invention,

K, and the latter adjnstably held by the two i sets of adjusting-screws K K bearing upon the edges of the cutting-blades, the whole being constructed and combined substantially as and for the object specified.

In testimony that I claim the foregoing as my invention I have hereto set my hand and ftffixetl my seal in the presence of two subscribing witnesses.

JOSIAH ROSS. n s.]

Attest:

MICHAEL J. STARK, EMMA A. S. DoPP. 

